PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Methidathion; (O,O-Dimethyl-S-(5-methoxy-1,3,4-thiadiazolinyl-3-methyl)dithiophosphate) 950-37-8
14.01
6.00
7.00
11.00
8.00
7.01
4.05
4.07
4.01
3.08
Formula Synonyms
C6H11N2O4PS3 METHIDATHION, (O,O-DIMETHYL) S-(2-METHOXY-DELTA(SUP2)-1,3,4-THIADIAZOLIN-5, DMTP, DMTP (INSECTICIDE), ENT 27193, GEIGY 13005, GEIGY GS 13005, GEIGY GS-13005, GS 13005, MEDATHION, METHIDATION, O,O-DIMETHYL S(5-METHOXY-1,3,4-THIADIAZOLINYL-3-METHYL) DITH, O,O-DIMETHYL S-(2-METHOXY-1,3,4,-THIADIAZOL-5(4H)- ONYL-(4)-, PHOSPHORODITHIOIC ACID, O,O-DIMETHYL ESTER, S-ESTER WITH 4-(, PHOSPHORODITHIOIC ACID, O,O-DIMETHYL ESTER, S-ESTER WITH 4-(, PHOSPHORODITHIOIC ACID, O,O-DIMETHYL ESTER, S-ESTER WITH 4-(, PHOSPHORODITHIOIC ACID, S-[(5-METHOXY-2-OXO-1,3,4- THIADIAZO, S-(2,3-DIHYDRO-5-METHOXY- 2-OXO-1,3,4-THIADIAZOL-3-METHYL) D, S-2,3-DIHYDRO-5-METHOXY-2-OXO-1,3,4-THIADIAZOL-3-YLMETHYL O,, S-[(5-METHOXY-2-OXO-1,3,4-THIADIAZOL-3(2H)-YL)METHYL] O,O-DI, SOMONIL, SUPRACID, SUPRACIDE, ULTRACID, ULTRACID 40, ULTRACID EC 40, ULTRACIDE, ULTRACIDE CIBA-GEIGY
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
302.34 S 0.000001 25 1.495 @ 20°C
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
1.8 20 160
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.15 1.6 13
Technical Basis
No technical basis available
References
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PAC values marked with a subscript "A" correspond to 60-minute AEGL values.
PAC values marked with a subscript "E" correspond to ERPG values.
PAC values marked by * are >= 10% lower explosive limit (LEL) but < 50% LEL.
PAC values marked by ** are > 50% LEL but < 100% LEL.
PAC values marked by *** are >= LEL.